The momentum and novelty is already starting to wear off as you noted. Though i'm sure when the headsets finally release, the novelty will be rekindled for a while. I'm just not sure its going to be everything that all the hype has promised.
As for practical applications, i think for those you mentioned, augmented reality (AR) will be a much more suitable fit to those applications overall.
It really will be interesting to see how things develop.